What is the primary purpose of installing a fixed jib on a crane?

The primary purpose of installing a fixed jib on a crane is to increase the total height that the crane can effectively reach. A fixed jib extends from the crane's main boom, allowing for greater lift capabilities by providing additional vertical reach. This is particularly useful in applications where lifting materials to elevated positions is required, such as construction projects for tall structures.

The fixed jib not only provides additional height but also contributes to the overall lifting capacity at increased angles, enabling the crane to access areas that would otherwise be difficult to reach. This configuration allows operators to address specific operational needs like reaching over obstacles or placing loads at significant elevations.

In contrast, enhancing load stability, improving maneuverability, and reducing operational costs do not directly relate to the primary function of a fixed jib. While enhancing load stability might be an important consideration in crane operation, that is typically addressed through other means, such as using counterweights or ensuring proper load distribution. Therefore, increasing the total height is the key reason for utilizing a fixed jib on a crane.